The Source of the Isuela and the Araviana Nature · Beratón, Moncayo, Soria Image of Beratón, not of the place itself. Two rivers rise in the municipal district: the Isuela, which runs down towards the Ebro through Aragonese lands, and the Araviana, which runs towards the interior of Soria; the municipality thus divides its waters between two slopes. Photo: Miguel Ángel García. (CC BY 2.0) What to see and do in Beratón